| Value | Category | Cases | |
|---|---|---|---|
| 1 | at the time of the sale | 3479 |
96.9%
|
| 2 | within one week | 81 |
2.3%
|
| 3 | within one month | 14 |
0.4%
|
| 4 | one month or more | 17 |
0.5%
|
| Sysmiss | 9427 |